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26745796380 = 22351726221369
BaseRepresentation
bin11000111010001011…
…000111011100011100
32120000221221020020010
4120322023013130130
5414233410441010
620141543123220
71634533342512
oct307213073434
976027836203
1026745796380
1110385339756
125225143510
1326a3128a24
14141a1904b2
15a680c0620
hex63a2c771c

26745796380 has 48 divisors (see below), whose sum is σ = 79293422880. Its totient is φ = 6712670208.

The previous prime is 26745796379. The next prime is 26745796523. The reversal of 26745796380 is 8369754762.

It is a super-2 number, since 2×267457963802 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26745796380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13109665 + ... + 13111704.

It is an arithmetic number, because the mean of its divisors is an integer number (1651946310).

Almost surely, 226745796380 is an apocalyptic number.

26745796380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26745796380 is an abundant number, since it is smaller than the sum of its proper divisors (52547626500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26745796380 is a wasteful number, since it uses less digits than its factorization.

26745796380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26221398 (or 26221396 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 26745796380 in words is "twenty-six billion, seven hundred forty-five million, seven hundred ninety-six thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 26221369 52442738 78664107 104885476 131106845 157328214 262213690 314656428 393320535 445763273 524427380 786641070 891526546 1337289819 1573282140 1783053092 2228816365 2674579638 4457632730 5349159276 6686449095 8915265460 13372898190 26745796380